install.packages("xtable") #Version 1.8.2
install.packages("dplyr") #Version 0.5.0
install.packages("ggplot2") #Version 2.2.1
install.packages("scales") #Version 0.4.1
install.packages("extrafont") #Version 0.17
install.packages("reshape2") #Version 1.4.2
install.packages("gridExtra") #Version 2.21
install.packages("cowplot") #Version 0.7.0
install.packages("foreign") #Version 0.8.67
install.packages("plyr") #Version 1.8.4
install.packages("sandwich") #Version 2.3.4
install.packages("data.table") #Version 1.10.0
install.packages("lmtest") #Version 0.9.34
install.packages("SDMTools") #Version 1.1.221
install.packages("ebal") #Version 0.1.6